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1310 Villigera (1932 DB)
Classification: Mars-crossing Asteroid          SPK-ID: 2001310
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3558459241282261 4.7319e-08  
a 2.391908633405021 6.9987e-09 AU
q 1.540757695320729 1.1376e-07 AU
i 21.07462267687624 1.0261e-05 deg
node 357.3392724907845 1.7135e-05 deg
peri 88.68290248223913 2.5238e-05 deg
M 117.1648084651175 1.3842e-05 deg
tp 2456360.745803494218
(2013-Mar-09.24580349)
5.1246e-05 JED
period 1351.186527900263
3.70
5.9304e-06
1.624e-08
d
yr
n .266432496599443 1.1694e-09 deg/d
Q 3.243059571489313 9.4892e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      29938 days (81.97 yr)  
   first obs. used      1932-02-28  
   last obs. used      2014-02-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54482  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:36:40  

Additional Information
 Earth MOID = .714793 AU 
 T_jup = 3.358 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.45 mag n/a PDS3 (MPC 17261)  
rotation period rot_per 7.830 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Koff, R.A. (2002) Minor Planet Bul. 29, 25-26.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
B-V BV .905 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=24.95 deg.
U-B UB .445 mag .023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=24.95 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices

1310 Villigera (1932 DB)          Discovered 1932-Feb-28 by Schwassmann, A. at Bergedorf
and A. Wachmann.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1932 DB = 1964 TC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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